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Mixed-valence complexes transient absorption studies

The copper(I) alkynyls displayed rich photochemistry and particularly strong photoreducing properties. The transient absorption difference spectrum of [Cu3(dppm)3(/X3-) -C=CPh)2]+ and the electron acceptor 4-(methoxycarbonyl)-A-methylpyridinium ion showed an intense characteristic pyridinyl radical absorption band at ca. 400 nm. An additional broad near-infrared absorption band was also observed and it was assigned as an intervalence-transfer transition of the mixed-valence transient species [Cu Cu Cu (dppm)3(/x3- -C=CPh)2] +. The interesting photophysical and photochemical properties of other copper(I) alkynyl complexes such as [Cu(BTA)(hfac)], 2 [Cui6(hfac)8(C=C Bu)8], and [Cn2o(hfac)8(CsCCH2Ph)i2] have also been studied. [Pg.5430]

See other pages where Mixed-valence complexes transient absorption studies is mentioned: [Pg.303]    [Pg.303]    [Pg.709]    [Pg.610]    [Pg.362]    [Pg.184]    [Pg.17]   
See also in sourсe #XX -- [ Pg.303 ]

See also in sourсe #XX -- [ Pg.303 ]



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Absorption studies

Complexation studies

Mixed valence

Mixed-valence complexes

Transient complex

Valence Complexes

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